How do animals see the world? The world might look like a colorful place, but it really depends on what your eyes let you see. Humans, for example, are sensitive to just 3 colors: red, blue, and green, but this allows us to see the millions of colors derived from them. While animals have eyes that come with all different kinds of “vision,” with some even being able to see colors we can only imagine.
To understand how far animals can see, scientists use a measure called CPD. The higher it is, the better their vision. For example, springtails have CPD of 0.02. These tiny creatures can barely see shapes, because their eyes have only 8 light-sensitive cells, compared to the human eye’s 100 million. Human beings have an average CPD of 70 and can detect a burning candle from almost 2 miles away! We share the planet with billions of other creatures that are extremely different from one another, and here’s another compilation of cool facts about animals.
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